If we look at the alphabetic series,
the difference between first letters of all pairs is three.
Moreover, the difference between two letters in each
pair is ten. Hence, MW is the answer.
Mathematical Reasoning MCQ - Letter Series
The second and fourth letters in the series, L and T
are static. The first and third letters consist of an alphabetical order beginning with the letter E.
| First Letter | Second Letter |
| W – 4 = S | E + 2 = G |
| S – 3 = P | G + 3 = J |
| P – 4 = L | J + 4 = N |
| L – 3 = I | N + 5 = S |
Thus (a) is the right answer.
This series is just like the above series. However, the
middle letter of each term is replaced by a number.
The third letter is repeated as the first letter of
the next segment. The middle letter, A, remains static.
The third letters are in alphabetical order beginning
with R.
